--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/camerauis/cameraapp/generic/inc/cameracontroller/camimageencoder.h	Wed Sep 01 12:30:54 2010 +0100
@@ -0,0 +1,151 @@
+/*
+* Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies). 
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:  Image Encoder class.
+*
+*/
+
+
+#ifndef CAM_IMAGEENCODER_H
+#define CAM_IMAGEENCODER_H
+
+// ===========================================================================
+// Included headers
+#include <e32std.h>
+#include <f32file.h>
+
+// ===========================================================================
+// Forward declarations
+class CImageEncoder;
+class CCamBufferShare;
+
+
+// ===========================================================================
+// Classes
+
+/**
+* Interface for Image Encoder Observers
+*/
+class MCamImageEncoderObserver
+  {
+  public:
+  
+    /**
+    * Notify observer that the image has been encoded.
+    * @param aStatus Status code describing the success of the operation.
+    *                KErrNone if all went as planned.
+    * @param aData   Encoded image data. NULL if errors in decoding.
+    *                Ownership transferred to observer.
+    */
+    virtual void ImageEncoded( TInt aStatus, HBufC8* aData ) = 0;
+  };
+  
+
+/**
+* Image Encoder class
+*/
+class CCamImageEncoder : public CActive
+  {
+  // =======================================================
+  public:
+
+    /**
+    * 2-phase constructor.
+    */
+    static CCamImageEncoder* NewL( MCamImageEncoderObserver& aObserver );
+    
+    /**
+    * Destructor.
+    */
+    virtual ~CCamImageEncoder();
+
+  // -------------------------------------------------------
+  // From CActive
+  protected: 
+
+    /**
+    * Called when Cancel is requested and this AO is active.
+    * @see CActive
+    */
+    virtual void DoCancel();
+
+    /**
+    * We get notified of the decoding success by a call to RunL
+    * when decoding finishes.
+    * @see CActive
+    */
+    virtual void RunL();
+    
+    /**
+    * If a leave occurs in RunL, RunError gets called by the 
+    * Active Scheduler.
+    * @param aError Leave code from RunL.
+    * @see CActive
+    */
+    virtual TInt RunError( TInt aError );
+
+  // -------------------------------------------------------
+  public:
+
+    void StartConversionL( CCamBufferShare* aBuffer );
+
+  private:
+
+    /**
+    * Store the buffer and release any previous buffer.
+    * Can be called with NULL to release current buffer.
+    */  
+    void SetInputBuffer( CCamBufferShare* aBuffer );
+
+    /**
+    * Free all encoding related resources.
+    */
+    void ReleaseEncoder();
+    
+    /**
+    * Notify observer. 
+    * Transfers the encoding data ownership to the observer.
+    */
+    void NotifyObserver( TInt aStatus );
+
+  private:
+
+    /**
+    * 2nd phase constructor.
+    */
+    void ConstructL();
+
+    /**
+    * 1st phase constructor.
+    * Cannot leave.
+    */
+    CCamImageEncoder( MCamImageEncoderObserver& aObserver );
+
+  // =======================================================
+  // Data
+  private:
+
+    MCamImageEncoderObserver& iObserver;
+
+    CCamBufferShare*          iSharedInput;
+    HBufC8*                   iEncodedData;
+
+    CImageEncoder*            iEncoder;
+
+  // =======================================================
+  };
+
+// ===========================================================================
+#endif // CAM_IMAGEENCODER_H
+
+// end of file